US20160271769A1 - Screw releasing device with guiding function - Google Patents
Screw releasing device with guiding function Download PDFInfo
- Publication number
- US20160271769A1 US20160271769A1 US14/837,653 US201514837653A US2016271769A1 US 20160271769 A1 US20160271769 A1 US 20160271769A1 US 201514837653 A US201514837653 A US 201514837653A US 2016271769 A1 US2016271769 A1 US 2016271769A1
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- US
- United States
- Prior art keywords
- cam
- serrated
- housing
- receiving groove
- releasing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
- B25B23/06—Arrangements for handling screws or nuts for feeding screws or nuts using built-in magazine
- B25B23/065—Arrangements for handling screws or nuts for feeding screws or nuts using built-in magazine the magazine being coaxial with the tool axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/04—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, or spherical or like small articles, e.g. tablets or pills
- B65D83/0409—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, or spherical or like small articles, e.g. tablets or pills the dispensing means being adapted for delivering one article, or a single dose, upon each actuation
Definitions
- the subject matter herein generally relates to screw mechanisms, and particularly to a screw releasing device with a guiding function.
- FIG. 1 is an isometric view showing an embodiment of a screw releasing device with a first housing and a second housing.
- FIG. 2 is an exploded, isometric view of the screw releasing device.
- FIG. 3 is an exploded, isometric view of a control mechanism of the screw releasing device.
- FIG. 4 is a cross-sectional view of the screw releasing device along a line VII-VII of FIG. 1 .
- FIG. 5 is an exploded, isometric view of the second housing of the screw releasing device.
- FIG. 6 is a cross-sectional view of the screw releasing device along a line VI-VI of FIG. 1 .
- FIG. 7 is another exploded, isometric view of the control mechanism of FIG. 3 .
- FIG. 8 is a cross-sectional view of the screw releasing device along a line VIII-VIII of FIG. 1 .
- FIG. 1 illustrates an embodiment of a screw releasing device 1 .
- the screw releasing device 1 includes a first housing 20 and a control mechanism 40 .
- the first housing 20 is substantially a square tubular body of which a top and a bottom are conical.
- the first housing 20 defines a transverse first receiving groove 21 at the bottom of the first housing 20 , the first receiving groove 21 receives the control mechanism 40 .
- a portion of the bottom of the first receiving groove 21 is open.
- the control mechanism 40 includes a first cam 41 , a second cam 42 , and a third cam 43 .
- the first cam 41 and the third cam 43 are limited by the second cam 42 and align with each other.
- the first cam 41 passes through the second cam 42 , and a portion of the first cam 41 extends out from the first housing 20 and a side 423 of the second cam 42 .
- the third cam 43 includes a serrated member 430 , a portion of the serrated member 430 extends out from another side 424 of the second cam 42 , and the serrated member 430 includes a number of serrations 4300 .
- there are six serrations 4300 on the serrated member 430 there are six serrations 4300 on the serrated member 430 , and the distance between any two adjacent serrations 4300 is the same.
- the first housing 20 defines a vertical guiding hole 22 which passes through the first housing 20 from the top to the bottom, and the guiding hole 22 receives a number of screws 50 .
- a sidewall of the guiding hole 22 defines a first opening 220 aligning with the serrated member 430 .
- the serrated member 430 extends to the guiding hole 22 via the first opening 220 .
- a serration 4300 of the serrated member 430 is at a supporting location, and supports the screws 50 in the guiding hole 22 by holding in place the bottommost of the screws 50 .
- the first cam 41 of the control mechanism 40 can drive the third cam 43 to move in response to an external force.
- the first cam 41 can drive the third cam 43 to be unlimited by the second cam 42 and to rotate relative to the second cam 42 , thus the serrated member 430 of the third cam 43 is rotated accordingly to release the bottommost of the screws 50 , the bottommost screw 50 thereby slides out from the bottom of the first housing 20 along the guiding hole 22 .
- a rotation angle of the third cam 43 is a constant sixty degrees.
- the screw releasing device 1 further includes a second housing 10 and a driving mechanism 30 .
- the second housing 10 is fixed on a sidewall of the first housing 20 , as illustrated in FIG. 5 , the second housing 10 defines a second receiving groove 11 and a second opening 12 .
- the second receiving groove 11 receives the driving mechanism 30 .
- a portion of the driving mechanism 30 extends out from the second opening 12 .
- the second cam 42 is fixed on the bottom of the second housing 10 , the first cam 41 passes through the second cam 42 , and partially extends to the second receiving groove 11 , to align with the driving mechanism 30 .
- the driving mechanism 30 is in contact with the first cam 41 , and drives the first cam 41 to push the third cam 43 to be out of the limit of the second cam 42 in response to the external force applied to the driving mechanism 30 .
- the serrated member 430 can thus be rotated to release the bottommost screw 50 , the bottommost screw 50 thereby sliding out from the first housing 20 along the guiding hole 22 .
- the driving mechanism 30 includes a first connection rod 31 and a second connection rod 32 .
- the first connection rod 31 includes a pressing member 310 and a first connection member 311 located at opposite ends of the first connection rod 31 , the pressing member 310 extends out from the second opening 12 of the second housing 10 .
- the second connection rod 32 includes a second connection member 320 and a push member 321 located at opposite ends of the second connection rod 32 .
- the second connection member 320 is in contacted with the first connection member 311 and the push member 321 aligns with the first cam 41 which extends to the second receiving groove 11 .
- the second housing 10 further includes a first rotational shaft 13 and a second rotational shaft 14 .
- the first connection rod 31 is rotatably fixed on the first rotational shaft 13 and can rotate about the first rotational shaft 13
- the second connection rod 32 is rotatably fixed on the second rotational shaft 14 and can rotate about the second rotational shaft 14 .
- the first cam 41 includes a cylinder 410 and a number of serrated blocks 411 which are set in an end of the cylinder 410 .
- a slot 412 is formed between each two serrated blocks 411 .
- the second cam 42 defines an opening 422 in each end, an inner sidewall of the second cam 42 defines a latching ring 420 , and a number of latching bars 421 which extend perpendicularly from a surface 4200 of the latching ring 420 .
- the number of the latching bars 421 is the same as the number of slots 412 , such as, the number of latching bars 421 and the number of slots 412 both are three.
- the first cam 41 is inserted into the second cam 42 from the end which defines the latching bars 421 of the second cam 42 .
- the serrated blocks 411 resist the latching ring 420 and the slots 412 are fitted with the latching bars 421 .
- the first cam 41 is thereby fixed non-rotatably in the second cam 42 , and the first cam 41 can move along the latching bars 421 when driven by the driving mechanism 30 .
- An end of the cylinder 410 without the serrated blocks 411 extends out from the second cam 42 and aligns with the push member 321 of the second connection rod 32 .
- the third cam 43 further includes a serrated block 431 which is connected with the serrated member 430 .
- the serrated block 431 includes a number of protrusion members 4310 and a number of recess members 4311 .
- the protrusion members 4310 extend along a direction parallel with the latching bars 421 and each protrusion member 4310 is a protrusion with substantially a right triangle cross section.
- Each protrusion member 4310 includes a horizontal surface 4312 and a slope surface 4313 .
- the driving mechanism 30 When the driving mechanism 30 is not driving the first cam 41 , a part of the protrusion members 4310 contact the latching bars 421 via the horizontal surface 4312 , and the protrusion members 4310 are in contact with the serrated blocks 411 of the first cam 41 , the third cam 43 is thereby limited by the second cam 42 .
- the control mechanism 40 further includes a first spring 44 , a fixing rod 45 , and a fixing ring 46 .
- the fixing ring 46 wraps the fixing rod 45 .
- the first cam 41 further defines a first through hole 413 which passes through the first cam 41
- the third cam 43 further defines a second through hole 432 which passes through the third cam 43 .
- one end of the fixing rod 45 stretches into the first through hole 413 and the second through hole 432 , and the other end of the fixing rod 45 is fixed on the bottom of the first receiving groove 21 .
- the first spring 44 wraps the fixing rod 45 , and an initial state of the first spring 44 is being compressed.
- One end of the first spring 44 contacts the fixing ring 46 , and the other end of the first spring 44 contacts the bottom of the first receiving groove 21 , the first spring 44 is thereby limited between the fixing ring 46 and the bottom of the first receiving groove 21 .
- the fixing ring 46 is in contact with the serrated member 430 of the third cam 43 by elastic force of the first spring 44 and the third cam 43 is further fixed in the second cam 42 by the elastic force.
- the third cam 43 can rotate about the fixing rod 45 and the first spring 44 can be thereby stretched or compressed.
- FIG. 6 an operating principle of the screw releasing device 1 is described with reference to FIG. 6 .
- the user aligns the screw releasing device 1 to the screw hole, and presses the pressing member 310 of the driving mechanism 30 .
- the first connection rod 31 is driven to rotate anticlockwise about the first rotational shaft 13 , and the first connection member 311 drives the second connection member 320 to move away from the first housing 20 .
- the second connection rod 32 is driven to rotate clockwise about the second rotational shaft 14 , and the push member 321 pushes the first cam 41 to move to the left, thus driving the serrated block 431 to move to the left until the serrated block 431 is out of the limit of the latching bars 421 of the second cam 42 .
- the serrated blocks 411 of the first cam 41 are in contact with the slope surfaces 4313 of the protrusion members 4310 , and drive the third cam 43 to rotate until the serrated blocks 411 engage with the recess members 4311 of the serrated block 431 .
- the serrated member 430 releases the bottom screw 50 , and the bottom screw 50 slides out from the first housing 20 along the guiding hole 22 and drops into the screw hole. As the bottommost screw 50 is released, the next screw 50 moves down until another serration 4300 is rotated to the supporting location to support the screw 50 which becomes the new bottommost screw 50 . At the same time, each protrusion member 4310 of the serrated block 431 contacts the serrated blocks 411 of the first cam 41 again.
- the first spring 44 Since the initial state of the first spring 44 is compressed, the first spring 44 is further compressed when the third cam 43 moves left.
- the third cam 43 is driven to the right by the elastic restoring force of the first spring 44 , until the serrated block 431 is limited by the latching bars 421 of the second cam 42 again.
- the driving mechanism 30 drives the first cam 41 again, the serrated block 411 of the first cam 41 is in contact with the protrusion members 4310 of the serrated blocks 431 , and drives the third cam 43 to move to the left and be out of the limit of the latching bars 421 , and the third cam 43 drives the serrated member 430 to rotate.
- the driving mechanism 30 further includes a second spring 33 .
- a sidewall of the first housing 20 defines a transverse groove 23 at a location below the second connection rod 32 .
- one end of the second spring 33 is fixed on the second connection rod 32
- the other end of the second spring 33 is fixed on the bottom of the groove 23 .
- an initial state of the second spring 33 is being compressed. The compressed elastic force of the second spring 33 ensures that until the pressing member 310 is pressed by the user, the second connection rod 32 cannot rotate and the first cam 41 does not move, avoiding a release of the screw 50 by carelessness.
- the screw releasing device 1 further includes an operating mechanism 60 and a third spring 70 .
- the operating mechanism 60 includes an operating member 61 , a limit member 62 , an unlocking member 63 , and a locking member 64 .
- a sidewall of the first housing 20 defines a transverse third receiving groove 24 at a location closing to the top of the first housing 20
- the third receiving groove 24 receives the limit member 62 , the unlocking member 63 , and the locking member 64 , and the operating member 61 extends out from the first housing 20 .
- the limit member 62 limits the operating mechanism 60 in the third receiving groove 24 .
- the third spring 70 is set between the limit member 62 and locking member 64 and wraps a part of the unlocking member 63 One end of the third spring 70 is in contact with the locking member 62 , and the other end of the third spring 70 is in contact with the third receiving groove 24 .
- the guiding hole 22 defines a third opening 221 at a location corresponding to the third receiving groove 24 , the third receiving groove 24 is connected to the guiding hole 22 via the third opening 221 .
- the unlocking member 63 and locking member 64 are both cylinders, and a diameter of the locking member 64 is greater than a diameter of the unlocking member 63 . If the operating mechanism 60 is not pressed by the user, the third spring 70 is compressed and contains elastic restoring force.
- the limit member 62 is in contact with the third receiving groove 24 by the elastic restoring force of the third spring 70 and a portion of the locking member 64 extends to the guiding hole 22 via the third opening 221 , thereby avoiding the screw 50 sliding out from the top opening of the guiding hole 22 .
- the user can press the operating member 61 , the operating member 61 further compresses the third spring 70 and drives the locking member 64 to move to the left until the locking member 64 is in contact with the bottom of the third receiving groove 24 , the unlocking member 63 thereby aligns exactly with the third opening 221 .
- the diameter of the unlocking member 63 is relatively small, thus the unlocking member 63 does not extend to the guiding hole 22 , the guiding hole 22 is not blocked, and the screws 50 to be added can slide into the guiding hole 22 .
- the user can release the operating member 61 , the operating mechanism 60 moves to the right until the limit member 62 is in contact with the third receiving groove 24 again, and the locking member 64 extends to and blocks the guiding hole 22 again.
- the driving mechanism 30 and the second housing 10 can be omitted, and a portion of the first cam 41 of the control mechanism 40 can extend out from the first housing 20 .
- the user can press the first cam 41 directly and drive the first cam 41 to move to the left, and the screw releasing device 1 can execute foregoing process of releasing the screws 50 .
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Abstract
Description
- This application claims priority to Chinese Patent Application No. 201510116003.6 filed on Mar. 17, 2015, the contents of which are incorporated by reference herein.
- The subject matter herein generally relates to screw mechanisms, and particularly to a screw releasing device with a guiding function.
- In assembly process of many electronic devices, such as smart phones, and tablet computers, members in antimagnetic interference area of these electronic devices should be fastened with non-magnetic screws. The assembly of electronic devices can use other methods of affixing two parts such as gluing or press fitting. In yet other implementations a single use fastener can be implemented.
- Many aspects of the disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is an isometric view showing an embodiment of a screw releasing device with a first housing and a second housing. -
FIG. 2 is an exploded, isometric view of the screw releasing device. -
FIG. 3 is an exploded, isometric view of a control mechanism of the screw releasing device. -
FIG. 4 is a cross-sectional view of the screw releasing device along a line VII-VII ofFIG. 1 . -
FIG. 5 is an exploded, isometric view of the second housing of the screw releasing device. -
FIG. 6 is a cross-sectional view of the screw releasing device along a line VI-VI ofFIG. 1 . -
FIG. 7 is another exploded, isometric view of the control mechanism ofFIG. 3 . -
FIG. 8 is a cross-sectional view of the screw releasing device along a line VIII-VIII ofFIG. 1 . - It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts can be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein.
- The term “comprising” means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in a so-described combination, group, series and the like.
- Embodiments of the present disclosure will be described with reference to the accompanying drawings.
-
FIG. 1 illustrates an embodiment of ascrew releasing device 1. As illustrated inFIG. 2 , thescrew releasing device 1 includes afirst housing 20 and acontrol mechanism 40. In the illustrated embodiment, thefirst housing 20 is substantially a square tubular body of which a top and a bottom are conical. Thefirst housing 20 defines a transversefirst receiving groove 21 at the bottom of thefirst housing 20, the first receivinggroove 21 receives thecontrol mechanism 40. In the illustrated embodiment, a portion of the bottom of the first receivinggroove 21 is open. - As shown in
FIG. 2 , thecontrol mechanism 40 includes afirst cam 41, asecond cam 42, and athird cam 43. Thefirst cam 41 and thethird cam 43 are limited by thesecond cam 42 and align with each other. Thefirst cam 41 passes through thesecond cam 42, and a portion of thefirst cam 41 extends out from thefirst housing 20 and aside 423 of thesecond cam 42. As illustrated inFIG. 3 , thethird cam 43 includes aserrated member 430, a portion of theserrated member 430 extends out from anotherside 424 of thesecond cam 42, and theserrated member 430 includes a number ofserrations 4300. In the illustrated embodiment, there are sixserrations 4300 on theserrated member 430, and the distance between any twoadjacent serrations 4300 is the same. - As illustrated in
FIG. 4 , thefirst housing 20 defines a vertical guidinghole 22 which passes through thefirst housing 20 from the top to the bottom, and the guidinghole 22 receives a number ofscrews 50. A sidewall of the guidinghole 22 defines afirst opening 220 aligning with theserrated member 430. Theserrated member 430 extends to the guidinghole 22 via thefirst opening 220. When thefirst cam 41 is not driven, aserration 4300 of theserrated member 430 is at a supporting location, and supports thescrews 50 in the guidinghole 22 by holding in place the bottommost of thescrews 50. - The
first cam 41 of thecontrol mechanism 40 can drive thethird cam 43 to move in response to an external force. Thefirst cam 41 can drive thethird cam 43 to be unlimited by thesecond cam 42 and to rotate relative to thesecond cam 42, thus theserrated member 430 of thethird cam 43 is rotated accordingly to release the bottommost of thescrews 50, thebottommost screw 50 thereby slides out from the bottom of thefirst housing 20 along the guidinghole 22. - The release of the
bottommost screw 50 and rotation of theserrated member 430 allows thenext screw 50 to become thebottommost screw 50, the same moving down until anotherserration 4300 is rotated to the supporting location. The now-bottommost screw 50 is at the bottom and is supported by theserration 4300 currently at the supporting location. In the illustrated embodiment, each time onescrew 50 is slid out, a rotation angle of thethird cam 43 is a constant sixty degrees. - As shown in
FIG. 2 , thescrew releasing device 1 further includes asecond housing 10 and adriving mechanism 30. Thesecond housing 10 is fixed on a sidewall of thefirst housing 20, as illustrated inFIG. 5 , thesecond housing 10 defines a second receivinggroove 11 and asecond opening 12. The second receivinggroove 11 receives thedriving mechanism 30. A portion of thedriving mechanism 30 extends out from thesecond opening 12. Thesecond cam 42 is fixed on the bottom of thesecond housing 10, thefirst cam 41 passes through thesecond cam 42, and partially extends to the second receivinggroove 11, to align with thedriving mechanism 30. - The
driving mechanism 30 is in contact with thefirst cam 41, and drives thefirst cam 41 to push thethird cam 43 to be out of the limit of thesecond cam 42 in response to the external force applied to thedriving mechanism 30. Theserrated member 430 can thus be rotated to release thebottommost screw 50, thebottommost screw 50 thereby sliding out from thefirst housing 20 along the guidinghole 22. - As shown in
FIG. 2 , in detail, thedriving mechanism 30 includes afirst connection rod 31 and asecond connection rod 32. Thefirst connection rod 31 includes apressing member 310 and afirst connection member 311 located at opposite ends of thefirst connection rod 31, thepressing member 310 extends out from the second opening 12 of thesecond housing 10. Thesecond connection rod 32 includes asecond connection member 320 and apush member 321 located at opposite ends of thesecond connection rod 32. Thesecond connection member 320 is in contacted with thefirst connection member 311 and thepush member 321 aligns with thefirst cam 41 which extends to the second receivinggroove 11. As illustrated inFIG. 6 , thesecond housing 10 further includes a firstrotational shaft 13 and a secondrotational shaft 14. Thefirst connection rod 31 is rotatably fixed on the firstrotational shaft 13 and can rotate about the firstrotational shaft 13, thesecond connection rod 32 is rotatably fixed on the secondrotational shaft 14 and can rotate about the secondrotational shaft 14. - As shown in
FIG. 3 , thefirst cam 41 includes acylinder 410 and a number ofserrated blocks 411 which are set in an end of thecylinder 410. Aslot 412 is formed between each twoserrated blocks 411. In the illustrated embodiment, there are threeserrated blocks 411 and threeslots 412 on thefirst cam 41. As illustrated inFIG. 7 , thesecond cam 42 defines anopening 422 in each end, an inner sidewall of thesecond cam 42 defines a latching ring 420, and a number oflatching bars 421 which extend perpendicularly from a surface 4200 of the latching ring 420. In the illustrated embodiment, the number of the latching bars 421 is the same as the number ofslots 412, such as, the number of latchingbars 421 and the number ofslots 412 both are three. - The
first cam 41 is inserted into thesecond cam 42 from the end which defines the latching bars 421 of thesecond cam 42. Theserrated blocks 411 resist the latching ring 420 and theslots 412 are fitted with the latching bars 421. Thefirst cam 41 is thereby fixed non-rotatably in thesecond cam 42, and thefirst cam 41 can move along the latchingbars 421 when driven by thedriving mechanism 30. An end of thecylinder 410 without theserrated blocks 411 extends out from thesecond cam 42 and aligns with thepush member 321 of thesecond connection rod 32. - The
third cam 43 further includes aserrated block 431 which is connected with theserrated member 430. Theserrated block 431 includes a number ofprotrusion members 4310 and a number ofrecess members 4311. Theprotrusion members 4310 extend along a direction parallel with the latching bars 421 and eachprotrusion member 4310 is a protrusion with substantially a right triangle cross section. Eachprotrusion member 4310 includes ahorizontal surface 4312 and aslope surface 4313. When thedriving mechanism 30 is not driving thefirst cam 41, a part of theprotrusion members 4310 contact the latching bars 421 via thehorizontal surface 4312, and theprotrusion members 4310 are in contact with theserrated blocks 411 of thefirst cam 41, thethird cam 43 is thereby limited by thesecond cam 42. In the illustrated embodiment, there are sixprotrusion members 4310 and sixrecess members 4311 on theserrated block 431, threeprotrusion members 4310 are in contact with three latchingbars 421. - As shown in
FIG. 3 , thecontrol mechanism 40 further includes afirst spring 44, a fixingrod 45, and a fixingring 46. The fixingring 46 wraps the fixingrod 45. Thefirst cam 41 further defines a first throughhole 413 which passes through thefirst cam 41, and thethird cam 43 further defines a second throughhole 432 which passes through thethird cam 43. As shown inFIG. 6 , one end of the fixingrod 45 stretches into the first throughhole 413 and the second throughhole 432, and the other end of the fixingrod 45 is fixed on the bottom of the first receivinggroove 21. - The
first spring 44 wraps the fixingrod 45, and an initial state of thefirst spring 44 is being compressed. One end of thefirst spring 44 contacts the fixingring 46, and the other end of thefirst spring 44 contacts the bottom of the first receivinggroove 21, thefirst spring 44 is thereby limited between the fixingring 46 and the bottom of the first receivinggroove 21. The fixingring 46 is in contact with theserrated member 430 of thethird cam 43 by elastic force of thefirst spring 44 and thethird cam 43 is further fixed in thesecond cam 42 by the elastic force. In the illustrated embodiment, thethird cam 43 can rotate about the fixingrod 45 and thefirst spring 44 can be thereby stretched or compressed. - As shown in
FIG. 6 , an operating principle of thescrew releasing device 1 is described with reference toFIG. 6 . When a user needs to install ascrew 50 in a screw hole, the user aligns thescrew releasing device 1 to the screw hole, and presses thepressing member 310 of thedriving mechanism 30. Thefirst connection rod 31 is driven to rotate anticlockwise about the firstrotational shaft 13, and thefirst connection member 311 drives thesecond connection member 320 to move away from thefirst housing 20. Accordingly, thesecond connection rod 32 is driven to rotate clockwise about the secondrotational shaft 14, and thepush member 321 pushes thefirst cam 41 to move to the left, thus driving theserrated block 431 to move to the left until theserrated block 431 is out of the limit of the latching bars 421 of thesecond cam 42. - At the same time, the
serrated blocks 411 of thefirst cam 41 are in contact with the slope surfaces 4313 of theprotrusion members 4310, and drive thethird cam 43 to rotate until theserrated blocks 411 engage with therecess members 4311 of theserrated block 431. - As shown in
FIG. 4 , during the rotation of thethird cam 43, theserrated member 430 releases thebottom screw 50, and thebottom screw 50 slides out from thefirst housing 20 along the guidinghole 22 and drops into the screw hole. As thebottommost screw 50 is released, thenext screw 50 moves down until anotherserration 4300 is rotated to the supporting location to support thescrew 50 which becomes the newbottommost screw 50. At the same time, eachprotrusion member 4310 of theserrated block 431 contacts theserrated blocks 411 of thefirst cam 41 again. - Since the initial state of the
first spring 44 is compressed, thefirst spring 44 is further compressed when thethird cam 43 moves left. When the user stops pressing thepressing member 310, thethird cam 43 is driven to the right by the elastic restoring force of thefirst spring 44, until theserrated block 431 is limited by the latching bars 421 of thesecond cam 42 again. When thedriving mechanism 30 drives thefirst cam 41 again, theserrated block 411 of thefirst cam 41 is in contact with theprotrusion members 4310 of theserrated blocks 431, and drives thethird cam 43 to move to the left and be out of the limit of the latching bars 421, and thethird cam 43 drives theserrated member 430 to rotate. - As shown in
FIG. 2 , thedriving mechanism 30 further includes asecond spring 33. A sidewall of thefirst housing 20 defines atransverse groove 23 at a location below thesecond connection rod 32. As shown inFIG. 6 , one end of thesecond spring 33 is fixed on thesecond connection rod 32, and the other end of thesecond spring 33 is fixed on the bottom of thegroove 23. In the illustrated embodiment, an initial state of thesecond spring 33 is being compressed. The compressed elastic force of thesecond spring 33 ensures that until thepressing member 310 is pressed by the user, thesecond connection rod 32 cannot rotate and thefirst cam 41 does not move, avoiding a release of thescrew 50 by carelessness. - As shown in
FIG. 6 , thescrew releasing device 1 further includes an operating mechanism 60 and athird spring 70. The operating mechanism 60 includes an operatingmember 61, alimit member 62, an unlockingmember 63, and a lockingmember 64. A sidewall of thefirst housing 20 defines a transverse third receivinggroove 24 at a location closing to the top of thefirst housing 20 Thethird receiving groove 24 receives thelimit member 62, the unlockingmember 63, and the lockingmember 64, and the operatingmember 61 extends out from thefirst housing 20. Thelimit member 62 limits the operating mechanism 60 in the third receivinggroove 24. Thethird spring 70 is set between thelimit member 62 and lockingmember 64 and wraps a part of the unlockingmember 63 One end of thethird spring 70 is in contact with the lockingmember 62, and the other end of thethird spring 70 is in contact with the third receivinggroove 24. - As illustrated in
FIG. 8 , the guidinghole 22 defines athird opening 221 at a location corresponding to the third receivinggroove 24, the third receivinggroove 24 is connected to the guidinghole 22 via thethird opening 221. In the illustrated embodiment, the unlockingmember 63 and lockingmember 64 are both cylinders, and a diameter of the lockingmember 64 is greater than a diameter of the unlockingmember 63. If the operating mechanism 60 is not pressed by the user, thethird spring 70 is compressed and contains elastic restoring force. Thelimit member 62 is in contact with the third receivinggroove 24 by the elastic restoring force of thethird spring 70 and a portion of the lockingmember 64 extends to the guidinghole 22 via thethird opening 221, thereby avoiding thescrew 50 sliding out from the top opening of the guidinghole 22. - When the user needs to add the
screws 50 into the guidinghole 22, the user can press the operatingmember 61, the operatingmember 61 further compresses thethird spring 70 and drives the lockingmember 64 to move to the left until the lockingmember 64 is in contact with the bottom of the third receivinggroove 24, the unlockingmember 63 thereby aligns exactly with thethird opening 221. The diameter of the unlockingmember 63 is relatively small, thus the unlockingmember 63 does not extend to the guidinghole 22, the guidinghole 22 is not blocked, and thescrews 50 to be added can slide into the guidinghole 22. When further thescrews 50 have been added, the user can release the operatingmember 61, the operating mechanism 60 moves to the right until thelimit member 62 is in contact with the third receivinggroove 24 again, and the lockingmember 64 extends to and blocks the guidinghole 22 again. - In other embodiments, the
driving mechanism 30 and thesecond housing 10 can be omitted, and a portion of thefirst cam 41 of thecontrol mechanism 40 can extend out from thefirst housing 20. The user can press thefirst cam 41 directly and drive thefirst cam 41 to move to the left, and thescrew releasing device 1 can execute foregoing process of releasing thescrews 50. - It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages, the examples hereinbefore described merely being exemplary embodiments of the present disclosure.
Claims (12)
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CN201510116003.6A CN106032005B (en) | 2015-03-17 | 2015-03-17 | Screw release device with guide function |
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US20160271769A1 true US20160271769A1 (en) | 2016-09-22 |
US9687973B2 US9687973B2 (en) | 2017-06-27 |
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Cited By (1)
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US11147741B2 (en) * | 2014-02-12 | 2021-10-19 | Stiplastics | Device for counting and dispensing objects |
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CN109202796A (en) * | 2018-11-28 | 2019-01-15 | 四川九洲电器集团有限责任公司 | A kind of screwdriver with clamping function |
CN110116863B (en) * | 2019-03-14 | 2024-04-12 | 南京工程学院 | Can supply push type toothpaste |
CN210476781U (en) * | 2019-06-25 | 2020-05-08 | 苏州佳世达电通有限公司 | Screw suction nozzle and screw suction device |
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Also Published As
Publication number | Publication date |
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TW201641224A (en) | 2016-12-01 |
US9687973B2 (en) | 2017-06-27 |
TWI651169B (en) | 2019-02-21 |
CN106032005A (en) | 2016-10-19 |
CN106032005B (en) | 2019-11-22 |
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